The motorway was initially shut both ways for a time yesterday morning following an accident believed to have involved two vans and a lorry at around 2.45am yesterday morning.
The northbound carriageway re-opened mid-morning but all four lanes southbound remained closed throughout the day for accident investigation and clear-up work to take place.
A diversion was put in place and drivers were advised to avoid the area.
Two lanes re-opened in time for the evening rush hour at around 4.30pm but the other two lanes remained shut into the evening for re-surfacing work to take place.
All remaining closures ended in the early hours of this morning (Friday).
Anyone who witnessed the initial incident or has any dash-cam footage is asked to contact the police on 101, quoting incident number 34 of 20 January 2022.”